Disable SPDY/3.1.

net/http/http_network_session.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/http/http_network_session.h"
 
 #include <utility>
 
 #include "base/atomic_sequence_num.h"
 #include "base/compiler_specific.h"
@@ skipping 73 matching lines @@
       http_auth_handler_factory(NULL),
       net_log(NULL),
       host_mapping_rules(NULL),
       socket_performance_watcher_factory(NULL),
       ignore_certificate_errors(false),
       testing_fixed_http_port(0),
       testing_fixed_https_port(0),
       enable_tcp_fast_open_for_ssl(false),
       enable_spdy_ping_based_connection_checking(true),
       spdy_default_protocol(kProtoUnknown),
-      enable_spdy31(false),
       enable_http2(true),
       spdy_session_max_recv_window_size(kSpdySessionMaxRecvWindowSize),
       spdy_stream_max_recv_window_size(kSpdyStreamMaxRecvWindowSize),
       time_func(&base::TimeTicks::Now),
       enable_http2_alternative_service_with_different_host(false),
       enable_quic_alternative_service_with_different_host(true),
       enable_priority_dependencies(true),
       enable_quic(false),
       disable_quic_on_timeout_with_open_streams(false),
       enable_quic_port_selection(true),
@@ skipping 116 matching lines @@
 
   // TODO(rtenneti): https://crbug.com/116575
   // Consider combining the NextProto and AlternateProtocol.
   if (params_.enable_http2) {
     next_protos_.push_back(kProtoHTTP2);
     AlternateProtocol alternate = AlternateProtocolFromNextProto(kProtoHTTP2);
     enabled_protocols_[alternate - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION] =
         true;
   }
 
-  if (params_.enable_spdy31) {
-    next_protos_.push_back(kProtoSPDY31);
-    AlternateProtocol alternate = AlternateProtocolFromNextProto(kProtoSPDY31);
-    enabled_protocols_[alternate - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION] =
-        true;
-  }
-
   if (params_.enable_quic) {
     AlternateProtocol alternate =
         AlternateProtocolFromNextProto(kProtoQUIC1SPDY3);
     enabled_protocols_[alternate - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION] =
         true;
   }
 
   next_protos_.push_back(kProtoHTTP11);
 
   http_server_properties_->SetMaxServerConfigsStoredInProperties(
@@ skipping 153 matching lines @@
     case WEBSOCKET_SOCKET_POOL:
       return websocket_socket_pool_manager_.get();
     default:
       NOTREACHED();
       break;
   }
   return NULL;
 }
 
 }  // namespace net